ok, i'll focus on the original post
so i'm also involuntarily in the chastity belt, the reason is simply that i'm dependent on my father in certain ways. That's exactly the point, I don't see that, you don't seem to be dependent (anymore). So just get out of the belt and if your dad won't give you the keys voluntarily, look out about lockpicking.
Why are you still in the belt despite your independence? Why?